/*
* @Author: wanghongfucoder
* @Date:   2017-02-05 09:04:56
* @Last Modified by:   wanghongfucoder
* @Last Modified time: 2017-02-05 10:06:01
*/
public abstract  class Burger implements Item {
	public Packing pack(){
		return  new Wrapper();
	}

	public abstract  float price();
}
